87 lines
2.3 KiB
Go
87 lines
2.3 KiB
Go
package op
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
|
|
"github.com/zitadel/oidc/v4/pkg/oidc"
|
|
)
|
|
|
|
type IDTokenHintVerifier oidc.Verifier
|
|
|
|
type IDTokenHintVerifierOpt func(*IDTokenHintVerifier)
|
|
|
|
func WithSupportedIDTokenHintSigningAlgorithms(algs ...string) IDTokenHintVerifierOpt {
|
|
return func(verifier *IDTokenHintVerifier) {
|
|
verifier.SupportedSignAlgs = algs
|
|
}
|
|
}
|
|
|
|
func NewIDTokenHintVerifier(issuer string, keySet oidc.KeySet, opts ...IDTokenHintVerifierOpt) *IDTokenHintVerifier {
|
|
verifier := &IDTokenHintVerifier{
|
|
Issuer: issuer,
|
|
KeySet: keySet,
|
|
}
|
|
for _, opt := range opts {
|
|
opt(verifier)
|
|
}
|
|
return verifier
|
|
}
|
|
|
|
type IDTokenHintExpiredError struct {
|
|
error
|
|
}
|
|
|
|
func (e IDTokenHintExpiredError) Unwrap() error {
|
|
return e.error
|
|
}
|
|
|
|
func (e IDTokenHintExpiredError) Is(err error) bool {
|
|
return errors.Is(err, e.error)
|
|
}
|
|
|
|
// VerifyIDTokenHint validates the id token according to
|
|
// https://openid.net/specs/openid-connect-core-1_0.html#IDTokenValidation.
|
|
// In case of an expired token both the Claims and first encountered expiry related error
|
|
// is returned of type [IDTokenHintExpiredError]. In that case the caller can choose to still
|
|
// trust the token for cases like logout, as signature and other verifications succeeded.
|
|
func VerifyIDTokenHint[C oidc.Claims](ctx context.Context, token string, v *IDTokenHintVerifier) (claims C, err error) {
|
|
ctx, span := tracer.Start(ctx, "VerifyIDTokenHint")
|
|
defer span.End()
|
|
|
|
var nilClaims C
|
|
|
|
decrypted, err := oidc.DecryptToken(token)
|
|
if err != nil {
|
|
return nilClaims, err
|
|
}
|
|
payload, err := oidc.ParseToken(decrypted, &claims)
|
|
if err != nil {
|
|
return nilClaims, err
|
|
}
|
|
|
|
if err := oidc.CheckIssuer(claims, v.Issuer); err != nil {
|
|
return nilClaims, err
|
|
}
|
|
|
|
if err = oidc.CheckSignature(ctx, decrypted, payload, claims, v.SupportedSignAlgs, v.KeySet); err != nil {
|
|
return nilClaims, err
|
|
}
|
|
|
|
if err = oidc.CheckAuthorizationContextClassReference(claims, v.ACR); err != nil {
|
|
return nilClaims, err
|
|
}
|
|
|
|
if err = oidc.CheckExpiration(claims, v.Offset); err != nil {
|
|
return claims, IDTokenHintExpiredError{err}
|
|
}
|
|
|
|
if err = oidc.CheckIssuedAt(claims, v.MaxAgeIAT, v.Offset); err != nil {
|
|
return claims, IDTokenHintExpiredError{err}
|
|
}
|
|
|
|
if err = oidc.CheckAuthTime(claims, v.MaxAge); err != nil {
|
|
return claims, IDTokenHintExpiredError{err}
|
|
}
|
|
return claims, nil
|
|
}
|